A collection or reprint of several of the Sasami related events that happened in the "Tenchi Muyo! " (No Need for Tenchi!) manga series. However, the book itself is in the new smaller format, and also features bonus comics in the back that were printed over the years. The bonus comics are not thought of as part of the overall manga story

Like the description says this is just takes stories from the Tenchi manga series that concern Sasami and collects them together really won't be worth that much except it also has the mangaka's 4koma series that he's done throughout the whole time it's been published. Humorous in their own right.